Stay-bolt for locomotive and other boilers.



E. I. DODDS. .STAY BOLT FOR LOCOMOTIVB AND OTHER BOILERS.

APPLICATION TILED O OT. 1B, i911.

1,061,274. muted may 13, 1913.

qETiAN'I. norms, or",rjniqtrmir.y 'VALLE'L NEW "YORK, AssIoisIoR ,1T0-KERNER' MAN- Q mei-,2.7.42

,"Beitfknoivn that l, ETHAN I. Dones, a

'Stay-Bolts'for Locomotive and other Boilers. of which the following?r is a' full, clear, and v:exact description,4 reference being had -.to,tlie` vaocoinpaiiyiiigdrawings;` forming npartol' this speciicatioii.` in which; f g f..

, Figure ll is a partial longitudinal sectioiif-f through aboli'. in positioni'of-oiie v fi'niii'of bolt embodying my ini'eiition.' Fig. Q .is 'a similar view of a. slightly-modifiedform.

fflig is a. plan view of thelbiiltshown in Fim' :Fig. 4 is a section-:il:Viewv of 'one en IFolia' bolt 'of modified form.' 5' i I, is .11 partial sectional View through another modified form of bolt. Fig. (3 is a-.sectional viewfonthe line X-Xof` Fig., o; Fig-'7 l lfis a, erspective view 'ofthe vtvvo connecting 'mem ers of the device shown inrFi'g. 5, and

FigLS is, 'a perspective view of a. tube ls fhop'ii #in thejconstruetion illustratedin Figs. 5 v"a1dv6..v.-;..

-My invention relates to an. improvement I *inl Stay bolts which extend from the firebox i :"'slie'et .tofthe outside boiler sheet, through` -itheevvater andv steam space, vand are conlTneotedl'lo both 4offt-he sheets by nieans of'z'i A'sere'v'vthreaded -connection on the end or connect-ing members of a bolt.

of the boiler sheets.

, Another object of my invention is to provide'a-stay bolt of this character which is cheap of construction, which can readily be assemb1ed, and1which can be secured in its position i' by means Vof a wrench applied to one end thereof. 'z

. The prcise nature of my invention will be best understood 'by reference to the accompanying drawings Whichwill now-be "descrihed,z1t beingpremised, however, that various` changes may be made in the details of construction and general arrangement of `Spcifcetion of-Letters I atexitlv .A Apiiiication'ied october 18,1911.. serii'Noasfs'A'sa,

holt. y

.The ob]eotof my. inventionis to provide f' "tifstaybolt-tliat will 'yield' at both ends to 'compensate for the eX1-iaiisioii-aiid extraction 'PACTURING' COMPANY, oP PITTSBURGH, PENNSYLVANIA, A conPoRATIoN. oi? fis.. .-PENNSYLVANIA-I- ,Y i f In thedra:iv-ings, the numerals lj andA 2 designate the boiler 'sheets'whihire tof be is ,seciiredijofl the connectil'igfA iiieinlgers for l on its-periphery; vvhile t and "11 aire shoiilde'r's --betyvefl the conical .o i'".f lirel -openings d-fyvithf inthe socket infeacli lof'th caps' a meinber- 7 having ali, elonLiited'headand legs .9.; j13ldesignates 'telljtil v through the ea ps Lg-and 5,' and, 14 aw'reiich seat-'in'vthe.cap4`y 'The parts are assemble 4 manner The IegSQof the iiiei'l'ie einem@ with the niei'i'ib'ersf areftheui'inseiited"into'f4 their respective caps l and'f 5;-` pressurefiS-ff:

then applied to the e'iids'offthe caps to move Vthem toward each other, during siich'lnove# -dial direction by engagement'with the-con'- A cal 'siii-faces 16 and. the 'inner iaoes ofthe' heads of the members: ,7 .ivlt expand the 9. passing into the recesses 10; 'le

' In Fi g. -2 j-I j show'l a' construction -`similarto that shown in Fia. 1', 'with theexeeption that I iise a tube 6 fr the body offthe bolt,

finaal is f Aforced toward each other, the inclined faces Nforce' the ends of the legs 27 outwardly to the openings 18in Fig. '1,'and mounted within the tube 6 is a rod I5 which is properiphery while the ..member '22- 1s con-` boltinv which the securing cais arecon-.

1. A stay bolt4 haring hollow' ends,- con# 29 to retain' the plug in its position'.

vided with conical ends for spreading the members 9 in a manner similar to the conical lottom of the openings in :the member 3 of 1g. 1.A g

The bolts abovedescribed are placed -in position by first passing the member 5 through the opening in thesheetr-2-andenf' gaging the'threads' '1n the plate 1 by'means of the threads 12, and by engaging the threads on the member 4 to the threads in the opening through the plate l2 and by rotating the member 4, the member 5 is' moved to its proper position by 'means of the'enge'gement of the legs 9 to the side walls ofthe'recesses 10.

- In Fig. 4I have shown a construct-ion' similar to that -shown in Fig. 1, with the exceptionthat 1 provide a head 26 which en.-

.gages the'face of the projection' 11, while the end ofthe body of the bolt passes into .an annular recess in the front portlon of said head.- ,Y

InA Figs. 5 to 8,1 have shown a Ibolt which' comprises a tube 20 having 'openings 18 at one end which are diametrically opposite to each other and similar openings at the other end which are a't right` angles to the other openings.` '2G- 126 .are the heads of the b olt which are provided with legs 2?.-27 and 28 are inclined faces at the junction of the legs 21 and 22 designate the connecting members, the member 21 oneach of said members.-

being provided with screw threads on its nected to a plug by means of a screw threaded engagement 23- with the headl thereof,

and extending outwardly from said head is 'a screw-'threaded projection 25. This'device is assembled in the following manner: Thel legs* 27 'of .the members are passed through the outer ends of'their respective caps. into the tube 2O which is placed be.

tween the caps. Themembers are thenv through the respective openings 18-and' 19 and into the recesses 10 in the caps 21 and 22'. The threaded head of the plug is then inserted in the cap 22, and the outer edge' ofthe plug is peened over as indicated at The advantages of my invention result from Ythe provlsion of a semi-universal stay nected to the body of the stay bo t by means of members'having flexible legs,A which are spread' to secure the body of the bolt tothe connecting members; further, from the provision of a head which is adapted to spread the ends of the bolt within a recess in the `connecting caps. l

I claim.

each cap, said heads having diverging legs passing through openings in :said boltfor connecting the members to each other; substantially as described.

being 'lateral openings extending through the vwalls of said hollow ends, a connecting cess of each cap and. within'the hollow ends through the openings in the ends of the bolt tially as described.

-5. A. stay bolt having an openingthrough each of its ends, aconnecting ca'pmovably of said securing membershaving a leg exmembers being arranged tesecure the ends tially as described. 6. A stay bolt having a-body portion and there being an opening through 'each end, o

a leg on each of said connecting members extending through the openings to secure said member to the bolt; substantially as described. e A

7. A 'stay bolt with a body portion having anopenig at each end thereof, lateral openings extending through the walls of the bolt and' communicating With the firstl mentioned opening, a securing cap on each ed of the bolt, said vsecurlng caps' having vertical rebosses, a member having a head'inv each of said recesses and extending into thev opening in that end of the'bolt, and'legs connected l he'end of the bolt; substantially as described.

8. A stay bolt having connecting members at each end thereof connected by means of a ball and socket joint, each of said -connecting members having a socket, the ends 2. A stay bolt havmg hollow. ends, con-- 4. A stay. bol having hollow ends, therel of the bolt, said head having legs extendingand into the recesses in said caps; substan- 'of' the bolt to the connecting caps; substanvto said head extending through the walls on' of the bolt being expanded within the socket l 3. A stay bolt having hollow ends, a cone necting. cap on each end thereof having a spherical recess," a head .within the recess of memb'er'oneach end of the bolt having a spherical recess,'"transverse recesses in the ends of said caps, and a h'ead 'thi there-v mounted oneach -end of said bolt, and' a se. curing member at each end of the-bolt, each tending through one of the openings, said a securing cap connected to each of its ends the said bolt, connecting members for con- -l necting the ends of thebolt to the cgps, and

membefs, a ball member vWithin eecvh socket Ann'ambrs,@bball melbe n lember vand the endl ofI the' bolt; substan'- `member andthe endpffilblt, and means' 10 tllly as described.v

fury-.connecting the boltrand ,soc lt members v stay bolt.y havig Afvzoinleetixlg niemaga'm'st rotation; substantially-ae dcribed.-

5 bers at eaeh end thereoconnected `by means of a ball and vsocket joint each of said con.- necting members having a sockeigy'the endsA 'pf the bolt beingexpanded Wiphin the socket 

